I have always preferred the consensus protocol of Proof-of-Stake compared to Proof-of-Work because i believe that true decentralization is achieved on PoS. Just recently the Ethereum Network upgraded to PoS consensus mechanism yet i have not heard about the specific collateral coins that would be required by the network to host a node. I would like to know how they intend to use the PoS as its consensus protocol knowing that currently its supply is not capped yet.
supply will have capped in the future but as far as i know, ethereum will use a hybrid instead of using a full POS system. you can stake while at the same time miners are still making the blockchain being decentralized. Some ethereum core developers have already released their speculation about how much needed to become a stakers.